Machine for putting springs in lock-bolts



(No Model.) 3 SheetsSheet 1.

G. B. OOWLES.

MACHINE FDR PUTTING SPRINGS IN LOCK BOLTS.

o. 283,081. T Patented Aug. 14, 1888.

(No Model.) 3 Sheets-Sheet' 2.

G. B. OOWLES.

MAGHiNE FOR PUTTING SPRINGS IN LOCK BOLTS. No. 283,081. Patented Aug. 14, L883,

(No Model.) 3 Sheets-Sheet 3.

G. B. GOWLES.-

MACHINE FOR'PUTTING SPRINGS IN LOOK BOLTS No. 283,0-81. V Patented Aug. 14,1 3.

I T UNITED STATES PATENT. OFFICE.

GEORGE B. OOWLES, OF NEW BRITAIN, CONNECTICUT.

MACHINE FOR PUTT INGSPRINGSIN LOCK- BOLTS,

SPECIFICATION forming part of Letters Patent No. 283,081, dated August 14, 1883.

Application filed April 19, 1883. (N0 model.)

To all whom, itjntay concern.-

Be it known thatI, GEORGE B. COWLES, a

citizen of the United States, residing. at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Machines for Putting Springs in Lock-Bolts, of which the following is a specification.

My invention relates to improvements in machinesfor putting springs into lock-bolts and lock-tumblers, and the objects of my invention are to do this work automatically when the springs are fed into the machine in the form of a continuous wire, and thereby to do the work not only cheaper but more accurately than by hand. Iattain these objects by means of the mechanism illustrated in the accompanying drawings, in which Figure 1 is a plan view of my machine. Fig.

2 is a rear elevation thereof. Fig. 3 is a detaclied side elevation and partial section on line 10, Figs. 1 and 2. Fig. 4 is a like view on line z, Figs. 1 and 2. Fig. 5 is a like view on line y Figs. 1 and 2. Fig. 6 is a like view on line :6 00, Figs. 1 and 2. Fig. 7 y is a front elevation of a detached portion of my machine. Fig. 8 is an under side view of a detachedpart for holding the spring; and Fig. 9 is a plan view of the lock-bolt with spring attached.

So far as I know this work has heretofore beenperformed by hand only. As shown in the drawings, the machine is adapted for putting, springs into lock-bolts, but it may readily be adapted for putting springs into lock-tumblers.

A designates the bed of the machine, upon which is mounted a circular bed or table, B.

Upon the surface of this table is an intermittently-revolving disk, 0, having mortises a,

which are designedto receive and hold the lock-bolt D, Fig. 9. Said. disk constitutes a carrier-plate and moves over the stationary bed. This disk is driven by means of ratchetwheel band pawl c, mounted upon an oscillating pawl-carrier, d, operated by means of lever D" and cam E uponthe main shaft F, whereby an oscillating motion isimparted .to the pawl-carrierd sufficient to drive the pawl back over one tooth of the ratchet-wheel b, and upon its next movement to impart to said ratchet and disk 0 one-tenth of a revolution. This disk is mounted with sufficientfriction iirits which it is left by the pawl, and so retain it in that position until the next advance movement of said pawl.

The spring 6, Fig. 9, of the lock-bolt is fed into the machine in the form of a continuous wire, f, Fig. 1, where it first passes into the feeding mechanism g, which is operated first by alifting-cam, G, to depress the forward end of the lever H and grip the wire, and

end of the lever H sidewise and feed the wire f forward a given distance. So soon as this forward movement of the wire takes place the cam J on main shaft F operates to lift the lever K to force the holder h down upon the wire f, and hold it in that position while the feeding mechanism 9 retreats, ready for an other forward movement. Figs. 5 and 6 show side elevations of these leversK and H, to-. .gether with the feeding mechanism and holder h,- but these parts are not new with me, and have been applied heretofore in other ma- 7 bearings to cause it to stop in the position in then by a side cam, I, to move the forward chines for feeding wire a given length at a time.

betweenthe holding-jaws 70, Figs. 3 and 8, at which time the end of the wire projects over the edge of the disk 0 and under the end of the lever L, and is directly over one of the mortises ainsaid disk. ,This cut-off iis formed in the end of a slotted plug, 1', which extends from in front of the holder hto the end of the p The wire f passes fromthe holder h through the cutoff i, with its end extending block R. Said block is made adjustable by wire to be depressed before it is cut off. The

cam 0 then operatesto depress the-forward end of lever L, and also to depressthe springplate Z, having the holding-jaws k, and drive the spring edgewise into the slot designed'to receive it in the lock-bolt D, the mortises (t in the carrier plate or. disk 0 having been-previously filled with lock-bolts by the operator. The wire will spring edgewise in the tapering slot of the plug enough to admit of its being ICC Q eeacer.

thus driven edgewise before it is cut off. The cam M upon the main shaft F then throws the shear-lever N upward and forward to cut off the wire, as shown most clearly in Fig. l. At the next intermittent movement of the disk 0 another lock-bolt is brought under the springplate Z, the wire is again fed forward, another length is cut off, and the lever L is again depressed to force another spring into a lockbolt, as before. The opening m i s made through the bed of the machine and in the edge of the circular table B, and immediately over said opening is a knock-out, I, mounted on the end of leverL, so that when said lever is depressed this knock-out strikes the lock-bolt:

and pushes it down through the mortise m, when it falls from the machine.

The spring-gage a extends around over the disk G and in front of the spring-plate Z to hold the lock-bolt down as the front end of lever K ascends. The spring-plate Z, Fig. 8, is made thin for the greater portion of its length between its two ends, so,that it may be depressed by the end of lever L and then returned again to its normal position. The mortise-s ain the carrier-plate or disk .0 are so formed relatively to the position of the spring-plate land its holding-jaws k that when the carrier stops with-a lock-bolt under said plate Z the jaws will be a little to one side of a position over the edge of thelockbolt, as indicated by broken lines in Fig. 9. The flat face 0, Fig. 9, of said spring-plate Z will at that time be directly over the slot in the lock-bolt designed to receive said end, so as to press it firmly into place under the action of lever L and cam O.

I have herein specified an intermittently-revolving disk forcarrying the lock-bolt under the device for inserting the springs; but it is evident that other carriers may be substituted thereforas, for instance, a straightcarriage moving from front to rear and stopping underneath the sprin gdriving mechanism, when the other parts of the machine will operate substantially the same. as before. The springs are intended to fit the slot in the lock bolt so closely that simply pressing them into place will suitablyfasten them therein.

1 claim as my invention- 1. The combination of a carrier for holding and moving the lock-bolt or tumbler, mechanism for feeding the wire, pressing the springwire into said lock-bolt or tumbler, and cutting it off, substantially as described, and for the purpose specified.

2. The combination-of a stationary bed or table having opening or mortise m, an intermittently-moving carriage having holdingmortises, mechanism for feeding the spring wire, for driving it into the lock-bolt or tumbler, for cutting it off, and a knock-outfor discharging the bolts from the mortises in the carrier, substantially as described, and for the purpose specified.

3. The combination of an intermittently moving carriage and its operating mechanism, the spring-plate Z, having holding-jaws 76, de pressing-lever L, and its operating mechanism, substantially as described, and for the purpose specified.

4. The combination of an intermittentlymoving carrier, holding-jaws for holding the springs over' the carrier, and mechanism for depressing the spring and driving it edgewise when thus held within the jaws, substantially as described, and for the purpose specified.

5. The combination of an intermittentlymoving carrier, mechanism for driving the spring edgewise intothe lock-bolt or tumbler,

cutting-off mechanism, and means for adjust- 8o ing the cutting-off mechanism to and from the .carrier, substantially as described, and for the purpose specified.

' GEORGE B. GOXVLES.

Witnesses JAMES SHEPARD, MARTIN A. POND. 

